Stable injection locking with slotted Fabry–Perot lasers at 2 μm

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dc.contributor.authorKavanagh, Niamh
dc.contributor.authorGoulding, David
dc.contributor.authorGunning, Fatima C. Garcia
dc.contributor.funderIrish Research Councilen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2019-06-24T11:42:26Z
dc.date.available2019-06-24T11:42:26Z
dc.date.issued2018-12-06
dc.description.abstractInjection locking has many applications in telecommunications systems, such as narrowing linewidths, increasing bandwidth and improving filtering. Beyond telecommunications, injection locking is widely used in remote sensing. This is of particular interest for applications in the 2 μm region, where gases such as carbon dioxide, water vapour and methane have identifiable absorption features. In this paper, we demonstrate stable injection locking with slotted Fabry–Perot lasers in the 2 μm wavelength region. Injection locking was observed in both the optical domain and power spectrum; with key features recorded such as injection ‘pulling’, side-mode suppression and the characteristic quiet region in the electrical domain denoting single-frequency emission and stable locking. The effect of varying the injection ratio was investigated, with a decreased injection ratio corresponding to a reduction in the locking bandwidth. Finally, the lasers were shown to remain injection locked, with no thermal drift, for over 24 h, indicating their suitability for implementation in a real-world telecommunications system.en
dc.description.sponsorshipIrish Research Council (GOIPG/2014/637)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid015005en
dc.identifier.citationKavanagh, N., Goulding, D. and Gunning, F. C. G., 2019. Stable injection locking with slotted Fabry–Perot lasers at 2 μm. Journal of Physics: Photonics, 1:015005, (11pp.) DOI: 10.1088/2515-7647/aae7d9en
dc.identifier.doi10.1088/2515-7647/aae7d9en
dc.identifier.endpage11en
dc.identifier.issn2515-7647
dc.identifier.issued1en
dc.identifier.journaltitleJournal of Physics: Photonicsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/8093
dc.identifier.volume1en
dc.language.isoenen
dc.publisherIOP Publishing Ltd.en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP1::ICT/258033/EU/Multi-mode capacity enhancement with PBG fibreMulti-mode capacity enhancement with PBG fibre/MODE-GAPen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Career Development Award/13/CDA/2103/IE/Software Defined Control of Superchannel Transponders for super-Tb/s Elastic Optical Networks/en
dc.relation.urihttps://iopscience.iop.org/article/10.1088/2515-7647/aae7d9/meta
dc.rights© 2018 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.en
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en
dc.subjectInjection-locked lasersen
dc.subjectSemiconductor lasersen
dc.subjectOptical communicationsen
dc.subjectOptical sensing and sensorsen
dc.titleStable injection locking with slotted Fabry–Perot lasers at 2 μmen
dc.typeArticle (peer-reviewed)en
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